Seiko Cal. 4412 - 731

This Hand-Winding model from 1971 features a 42mm Stainless Steel case. Powered by the 4412 caliber with 29j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-3f1e02af5ff8]

Also known as: Silverwave, Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

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